Staircase superconducting structure and oxygen intercalation in YBa2Cu3O7−δ single crystals
M. Couach, A. F. Khoder, F. Monnier, B. Barbara, J. Y. Henry
DOI 10.1103/PhysRevB.38.748 · Physical Review B
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Abstract
ac susceptibility studies of single crystals of YBa2Cu3O7−δ have been carried out with an ac field parallel or perpendicular to the surface of these crystals. The analysis of the results gives evidence for a staircase structure in which oxygen deficiencies increase towards the sample core. As a consequence, the oxygen mobility appears to be extremely anisotropic, favoring the c axis.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O7-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 80 | Pressure not reported | onset |
| YBa2Cu3O7-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 82.8 | Pressure not reported | onset |
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